Accessing a device on a switch port where the device has a static IP

I need to access a POE intercom with a static IP (192.168.1.250) connected to a TP Link switch (172.22.78.253) that is connected to a Mikrotik RB 3011 (172.22.79.5) that is in turn connected back to a core router CCR1036. We have a couple of VLANs on that switch. The Intercom is on VLAN1 which we don't use

Normally, I configure the intercom in the office by directly connecting to it and give it to the engineers to take on the field as they are a bit of a pain to do remotely. This wasn't the case due to COVID And WFH.

Question is, how do I gain access to that intercom?

New to the MSP world as a NOC engineer, bear with me here, not as experienced.

Thanks